Gland Condenser is used to collect condensate and calories of steam that used for sealing steam turbine, and it also creates a state of vacuum to help discharge of steam. The thermal energy is transformed to the kinetic energy as steam of high pressure-high temperature rotates steam turbine. Thus, Seal Steam System is necessary to prevent steam leakage from steam turbine and air infiltration into steam turbine. Gland Condenser collects condensate and steam calories as well as creation of vacuum state inside of Seal Steam System, and it also steam discharge.